Wednesday, October 12, 2011

Specimen #5 Moss

Figure 1: Polytrichum ohioense leaf

Figure 2: Polytrichum ohioense


Figure 3: Polytrichum ohioense capsule


Name: Polytrichum ohioense
Family:  Polytrichaeceae
Collection Date:  October 4, 2011
Habitat: Found on soil by rock in a shaded area
Location: West Woods
Description: Erect plants with young, white sporophytes. More mature sporophytes lifted by a red seta. Leaves green and narrow.
Collector: Jamie Frost


Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.


Introduction Key pg. 19
1a. Plants with stems and leaves; leaves equally spaced around the stem.... leaf cells isodiametric..... 2
2b. Plants not as above (not  of Subclass 1. Sphagnidae).... 3
3b. Plants not as above (not of Subclass 2. Andreaeidae)... pg 28 Subclass Bryidae


Key to Families/Genera of Bryidaes pg. 28
1b. Green plants.... 3
3b. Leaves inserted in three or more rows though plants sometimes strongly flattened thus appearing in two rows.....7
7b. Leaves well developed and persistent.... 9
9b. Capsule and leaves not as above... 10
10b. Plants with distict stem... capsule when present with an operculum.... 17
17b. Plants large; capsules exserted... growing on ...soil... 20
20a. Leaves with filiform green photosynthetic outgrowths.... 21
21b. Leaves with vertical lamellae on the upper surface... 23
23b. Leaves toothed on margin, with tips attached to a transverse membrane... 24
24b. Lamellae on the upper surface of the leaf more than 20.... 27
27b. Capsule angled; calyptra slighty to densely haired.... never thin and crispate when dry.... pg. 227 Polytrichum


Key to Family Polytrichaeceae - Genus Polytrichum
1b. End cells of lamellae smooth; calyptra densely hairy... 2
2b. Leaves ending in an awn..... 3
3b. Margins of leaf scarecely taller  than lamellae, toothed from apex to at least middle of leaf..... 5
5b. End cells peculiar in shape and thickening of walls.... 7
7b. End cells wider than high, the upper wall thickened..... Polytrichum ohioense


Links:
http://www.sagebud.com/ohio-polytrichum-moss-polytrichum-ohioense/
http://www.ohio.edu/plantbio/vislab/moss/kathy'spage.html

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Specimen #4 Moss



Figure 1: Detail of Rhacomitrium heterostichum




Name: Rhacomitrium heterostichum
Family:  Grimmiaceae
Collection Date:  September 13, 2011
Habitat: Towards the bottom of tree trunk of a cool, shaded area
Location: South Chargrin Reservation
Description: Small, green leaves arranged spirally around stem.  Small sporophytes, green or brown capsules lifted by reddish seta.
Collector: Jamie Frost


Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.


Introduction Key pg. 19
1a. Plants with stems and leaves; leaves equally spaced around the stem.... leaf cells isodiametric..... 2
2b. Plants not as above (not  of Subclass 1. Sphagnidae).... 3
3b. Plants not as above (not of Subclass 2. Andreaeidae)... pg 28 Subclass Bryidae


Key to Families/Genera of Bryidaes pg. 28
1b. Green plants.... 3
3b. Leaves inserted in three or more rows though plants sometimes strongly flattened thus appearing in two rows.....7
7b. Leaves well developed and persistent.... 9
9b. Capsule and leaves not as above (not Diphyscium).... 10
10b. Plants with distinct stem; capsule when present with an operculum... 17
17b. Plants minute to large; capsules... exserted.... growing on...trees.... 20
20b. Leaves without filiform green photosynthetic outgrowths.... 28
28b. Plants not growing on rich organic soil, dung, bones, or other organic matter of animal origin.... 33
33a. Stems erect... generally in tufts... 34
34b. Leaves, especially the bases, not as above.... 36
36a. Leaf cells... bulging mammilose.... 37
37b. Leaf cells striolate.... 43
43b. Alar cells not enlarged and cleary differentiated.... 45
45a. Stems repeatedly branching, appearing... pleuricarpous; sporophytes borne at intervals.... 46
46a. Cells of leaf narrow with extremely wavy walls.... pg 110 Rhacomitrium



Key to Family Grimmiaceae - Genus Rhacomitrium
1b. Leaves with hyaline hair points.... 3
3a. Leaf cells smooth.... 4
4a. Hyaline hair point smooth to merely toothed.... Rhacomitrium heterostichum

Links:
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Tuesday, October 11, 2011

Speciment #3 Moss




Figure 1: Detail of Bryhnia novae-angliae




Name: Bryhnia novae-angliae
Family:  Brachytheciaceae
Collection Date:  October 4, 2011
Habitat: Shaded area on moist log
Location: West Woods
Description: Leaves small, arranged around branching stems. Capsules lifted above gametophytes by seta, dark in color.
Collector: Jamie Frost


Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.

Keying Steps:
Introduction Key pg. 19
1a. Plants with stems and leaves; leaves equally spaced around the stem.... leaf cells isodiametric..... 2
2b. Plants not as above (not  of Subclass 1. Sphagnidae).... 3
3b. Plants not as above (not of Subclass 2. Andreaeidae)... pg 28 Subclass Bryidae

Key to Families/Genera of Bryidaes pg. 28
1b. Green... plants....3
3b. Leaves inserted in three or more rows though plants sometimes strongly flattened thus appearing in two rows.... 7
7b. Plants with a peristome of more than 4 teeth.... 8
8b. Leaves well developed and persistent.... 9
9b. Capsule and leaves not as above (not Diphyscium)... 10
10b. Plants with distinct stem; capsule when present with an operculum... 17
17b. Plants large... growing on trees... 20
20b. leaves without filiform green photosynthetic outgrowths... 28
28b. Plants not growing on rich organic soil, dung, bones, or other organic matter of animal origin.... 33
33b. Stems creeping.. in interwoven mats.... 139
139a. Leaves papillose... 140
140a. Papillae formed by projecting angles of cell wall... 141
141a. Costa of leaves single... 142
142b. Leaves small, to 1.2 mm long.... 143
143a. Costa not prominent.... pg. 197 Bryhnia


Key to Family Brachytheciaceae - Genus Bryhnia
1a. Twisted at the apex, costa smooth on back... Bryhnia novae-angliae



Links:
http://greekbiodiversity-habitats.web.auth.gr/en/specie/2291/photo

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Specimen #2 Moss


Figure 1: Detail ofDicranoweisia crispula

Figure 2: Dicranoweisia crispula capsules
Figure 3: Detail of Dicranoweisia crispula plant



Name: Dicranoweisia crispula
Family:  Dicranaceae
Collection Date:  October 4, 2011
Habitat: Shaded area on log
Location: West Woods
Description: Leafy moss with leaves arranged spirally around stem, costa present.  Large capsules lifted above gametophyte by seta.
Collector: Jamie Frost



Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.

Keying Steps:
Introduction Key pg. 19
1a. Plants with steams and leaves; leaves equally spaced around stem... leaf cells elongate... 2
2b. Plants not as above.... 3
3b. Plants not as above ........pg 28 Subclass Bryidae


Key to Families/Genera of Bryidaes pg. 28
1b. Green plants.... 3
3b. Leaves inserted in three or more rows though plants sometimes strongly flattened thus appearing in two rows.... 7
7b. Plants with no peristome present ......8
8b. Leaves well developed and persistent.... 9
9b. Capsule and leaves not as above ....10
10b. Plants with a distinct stem; capsule when present with an operculum.... 17
17b.Plants minute to large; growing on trees.... 20
20b. Leaves without filiform green photosynthetic outgrowths... 28
28b. Plants not growing on rich organic soil,, dung, bones, or other organic material.... 33
33a. Stems erect, unbranched.... 34
34b. Leaves do not have a conspicuous area of large, inflated, hyaline cells next to the costa.... 36
36a. Leaf cells mammillose.... 37
37b. Leaf cells striolate.... 43
43a. Cells at basal angles of leaves enlarged and clearly differentiated.... 44
44a. Capsules erect and symmetric.... Dicranoweisia pg. 80

Key to Family Dicranaceae - Genus Dicranoweisia
1b. Leaf margins not recurved, alar cells inflated.... Dicranoweisia crispula


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Specimen #1 Leafy Liverwort


Figure 1: Detail of Nowellia curvifolia


Name: Nowellia curvifolia
Family:  Cephaloziaceae
Collection Date:  October 8, 2011
Habitat: Decaying log found in shade
Location: Hiram College Field Station woods
Description: Plants in loose, patches, green in color with unique leaves found on moist decaying logs.
Collector: Jamie Frost


Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.

Keying Steps:
Introduction Key pg. 19
1b.Plants with stems and leaves, the larger leaves in two rows on the stem and a third row of leaves, leaf cells isodiametric.... 4
4b. Plants...leafy, with more than one chloroplast per cell....5
5b. Plants slightly flattened, distinctly divided into stem and leaf...8
8b. Archegonia at the end of the thallus, terminating its further growth, with only one developing into a sporophyte, usually surrounded at the base by a perianth.....9
9a. Rhizoids present: ........pg 232 Order Jungermanniales


Key to Families/Genera of Jungermanniales pg. 232
1b. Leaves ....toothed, or divided at tip into 2, 3 or 4 lobes....6
6b. Plants not as above;if bilobed, bifurcate vitta absent...7
7a. Leaves...succubous...8
8b. Leaves lobed or their margins with distinct teeth...16
16b. Leaves not complicate-bilobed...18
18a. Leaves transversely inserted on the stem.... 19
19b. Leaves mostly bilobed... 23
23a. Lobes of leaves ciliate....Nowellia curvifolia pg 248

Links:

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